After several months of working fine, the crop tool in full edit made a small rectangle and would not track with the cursor. In guided edit it works fine. Now, the crop tool icon has disappeared when in full edit. How do I get it back and functional? I have already tried resets, and a re-install.

Hah! You nailed it. I didn't realize it was a multiple icon. What confused me to start with was choosing crop in full edit gave a small rectangle. When I tried to expand it the cursor travelled a lot compared to the crop. No control. Later the icon 'disappeared'. Still not clear what caused original problem, but thanks for the help.

After working fine for over a year, my crop tool is now not functioning. When working with a photo merge photo it allows me to put the cropping perimeter around my image, but then when I tell it to go ahead and crop all the layer boxes (on the right of the screen) go blank. The box that should have my cropped image ( directly under the working space) has a teeny paint brush in the center overlaying a teeny box. No cropped image.

I am able to click on the crop icon, the dotted line crop box appears and I can adjust the size of the crop. But then when I go to apply the crop perimeter ( I click on the crop icon again and the prompt appears asking me if I want to crop, I hit "yes", and all the layers go blank , the cropped image has no picture any more, just the teeny paint brush). The layer palette boxes are all still there, but they have no image in them any more.

So it's not that the image has gone too small, in what should be my final crop image, it's that it has been replaced by this teeny paint brush image.

I've been able to defeat it by switching to "guided edit" to do the crop, and then switching to "full edit" to do everything else. But it shouldn't be doing this in full edit!

And now, for some unknown reason it is working once again. Could it have to do with the hour I spent on Adobe chat help, where the guy kept telling me that they no longer offered this kind of support for my product, and i kept asking to speak with the next most senior supervisor? Never know...but no, it wasn't the preferences, they were all "normal". I also tried taking Photoshop 10 out and reloading the whole thing. Didn't make a bit of difference. Thanks for your input thought!